Dyfyniad APA

Leftwich, R. H. An introduction to economic thinking [by] Richard H. Leftwich.

Dyfyniad Arddull Chicago

Leftwich, Richard H. An Introduction to Economic Thinking [by] Richard H. Leftwich. New York, Holt, Rinehart and Winston [1969].

Dyfyniad MLA

Leftwich, Richard H. An Introduction to Economic Thinking [by] Richard H. Leftwich.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.